<?php

/**
 * @file
 * Views handler: Product price field.
 */

/**
 * Returns a formatted price value to display in the View.
 */
class uc_product_handler_field_price extends views_handler_field_numeric {

    /**
     * Overrides views_handler::option_definition().
     */
    function option_definition() {
        $options = parent::option_definition();

        $options['format'] = array('default' => 'uc_price');
        $options['revision'] = array('default' => 'themed');

        return $options;
    }

    /**
     * Overrides views_handler::options_form().
     */
    function options_form(&$form, &$form_state) {
        parent::options_form($form, $form_state);

        $options = $this->options;

        $form['format'] = array(
            '#title' => t('Format'),
            '#type' => 'radios',
            '#options' => array(
                'uc_price' => t('Ubercart price'),
                'numeric' => t('Numeric'),
            ),
            '#default_value' => $options['format'],
            '#weight' => 1,
        );

        $form['revision'] = array(
            '#title' => t('Revision'),
            '#type' => 'select',
            '#options' => array(
                'original' => t('Original'),
                'altered' => t('Altered'),
                'formatted-original' => t('Formatted original'),
                'formatted' => t('Formatted'),
                'themed-original' => t('Themed original'),
                'themed' => t('Themed'),
            ),
            '#default_value' => $options['revision'],
            '#process' => array('views_process_dependency'),
            '#dependency' => array('radio:options[format]' => array('uc_price')),
            '#weight' => 1,
        );

        // Change weight and dependency of the previous field on the parent numeric ones
        $weight = 2;
        foreach (array('set_precision', 'precision', 'decimal', 'separator', 'prefix', 'suffix') as $field) {
            $form[$field]['#process'] = array('views_process_dependency');

            if (is_array($form[$field]['#dependency'])) {
                $form[$field]['#dependency'] += array('radio:options[format]' => array('numeric'));
                $form[$field]['#dependency_count'] = count($form[$field]['#dependency']);
            } else {
                $form[$field]['#dependency'] = array('radio:options[format]' => array('numeric'));
            }

            $form[$field]['#weight'] = ++$weight;
        }
    }

    /**
     * Overrides views_handler_field::render().
     */
    function render($values) {
        if ($this->options['format'] == 'numeric') {
            return parent::render($values);
        }

        if ($this->options['format'] == 'uc_price') {
            if (is_null($values->{$this->field_alias})) {
                return '';
            }

            $product = node_load($values->{$this->aliases['nid']});
            if ($product->{$this->real_field} == 0 && $this->options['empty_zero']) {
                return '';
            }

            $context = array(
                'revision' => $this->options['revision'],
                'type' => 'product',
                'class' => array(
                    'product',
                    $this->field,
                ),
                'field' => $this->real_field,
                'subject' => array(
                    'node' => $product,
                ),
            );
            $options = array('label' => FALSE);

            return uc_price($product->{$this->real_field}, $context, $options);
        }
    }

}
